Re: Torque spec for transfer case drain plugs

Thanks everyone. I did this job last week and so far so good. I changed the

fluid out to the new blue stuff. I can post the part number if you need
it.

On the torque, I finally found two torques listed in my book. One for the 
B-W and one for the New Venture. I'm pretty sure that the two-speed 
pushbutton x-fer case is New Venture because the tag said New Process. The

torque also showed 35 for the N-V as re****ted in the other post by 
repairman.

After two drain and re-fills to get all the old stuff out, I torqued the 
plugs. I chose my smallest torque wrench and it went only to 250 
in-lbs...about 20 ft-lbs. This wrench is about the length of a nice 1/2" 
drive ratchet. The plug started to show some resistance and started to run

out of thread before getting to the 20....so I just stopped.  I'll watch
for 
leaks and only tighten it more if I have to. I doubt it will leak or
vibrate 
out. I hope never to take these plugs out again.

35 ft-lbs just seems too tight for such soft materials. I think the number

should be closer to the number re****ted by klutz. That's the one bad thing

about old manuals, etc. When GM makes changes, the consumer doesn't get
the 
update. Same thing happened to me on some Ford spark plugs in an aluminum 
head.

Skimmer


"Repairman" <repairman54@[EMAIL PROTECTED]
> wrote in message 
news:g3li0e$n16$1@[EMAIL PROTECTED]
> Okay here ya go per my 1999 GM Yukon factory shop manual.
>
> 2 speed auto trac transfer case.
> Drain plugs are aluminum and case is magnesium. Only aluminum plugs can
be 
> used due to corrosion issues.
> Torque spec is 35 ft. lbs. .  Which is snug.........
>
>> NewsSkimmer wrote:
>>> These NPT drain plugs are as soft as butter....that scares me that
>>> the case is even softer.
>>>
>>> NPT plugs like this are a pita.
>>>
>>> Thanks for your help....I'd still like a torque value if anybody has
>>> it.
>>> skimmer
>
>